Question

The intermediate in haffmann rearrangement is​

Answer 1

Answer:

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Answer 2

Explanation:

The intermediate isocyanate is hydrolyzed to a primary amine, giving off carbon dioxide. Base abstracts an acidic N-H proton, yielding an anion. ... The bromoamide anion rearranges as the R group attached to the carbonyl carbon migrates to nitrogen at the same time the bromide ion leaves, giving an isocyanate.

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